Have we forgotten how venture capital (VC) is supposed to work?
A new technology comes out. The new tech has high startup costs and low marginal costs. You invest in 10 companies developing this new tech. 8 go bankrupt, one hangs on by a thread, the last one returns 1000x on what you invested.
Last I checked, Y-Combinator is still considered a VC firm. Investing in a bunch of firms doing the same or very similar things is what YC should be doing.